$a^2+a^2h^2$

$\int\:x^2\:e^{22x}dx$

$81x^2y^2-1$

$\left(38x-4\right)^2$

$-12-\left(-80\right)$

$\int_0^{\frac{\pi}{3}}\left(sin\left(2x\right)-sinx\right)dx$

$\lim_{x\to0}\left(\frac{\sqrt{x}\left(sin\left(x-1\right)^2\right)}{\left(x+1\right)^3\left(lnx\right)^2}\right)$